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Posted: 11/25/2008 7:11:16 PM EDT
Any idea why they would put a spot weld on the barrel to the trunion? Not that it really matters, just curious. |
| Probably had to adjust headspace and moved barrel further into or out from trunion. The drilled portion of the barrel where the pin contacts may have become elongated, thus the need for the spotweld to keep the barrel from ever moving. This is just pure speculation on my part! Should be solid and a few seconds with a cut off wheel and the spot weld is gone if the barrel ever needs to be changed. |
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well he got back to me real quick. I'm not too sure what else he may be refering to. Here's what he said.
It also evens the pressure of the barrel pin. That way it is secured at 6:00 and 12:00. Thanks, Troy Sellars IN RANGE www.inrangec2.com In a message dated 12/7/2008 11:30:21 P.M. Eastern Standard Time, NICTRA writes: Hello, My name is Travis, and I bought an SBR Krink that you guys built. I posted this question on AR15.com thinking someone would have the answer. The only response I got was to email you. So, here's my question. Why is there a tack weld under the barrel that weld the barrel to the trunion? Like I stated in my post, it doesn't really matter to me, I was just curious b/c I have never seen this done before. Link to my thread that has the picture http://www.ar15.com/forums/topic.html?b=4&f=82&t=113710 Thank you for your time, Travis |
Oh brother
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well he got back to me real quick. I'm not too sure what else he may be refering to. Here's what he said. It also evens the pressure of the barrel pin. That way it is secured at 6:00 and 12:00. Thanks, Troy Sellars IN RANGE www.inrangec2.com In a message dated 12/7/2008 11:30:21 P.M. Eastern Standard Time, NICTRA writes: Hello, My name is Travis, and I bought an SBR Krink that you guys built. I posted this question on AR15.com thinking someone would have the answer. The only response I got was to email you. So, here's my question. Why is there a tack weld under the barrel that weld the barrel to the trunion? Like I stated in my post, it doesn't really matter to me, I was just curious b/c I have never seen this done before. Link to my thread that has the picture http://www.ar15.com/forums/topic.html?b=4&f=82&t=113710 Thank you for your time, Travis |
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interesting, that's the first time i've heard of people having issues with the barrel pin not being sufficient to secure the barrel.
just imagine––all those original military AK's wouldn't have had barrels popping out if they'd only spot-welded the barrel to the trunnion.
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| I can tell you why I did one of my AKs that way. The barrel was loose in the trunnion. I dont mean the trunnion was loose, the barrel was actually moving in the trunnion. Once mine was welded it was ok, but if you paid good money then I likely wouldnt be happy about it. |
| there's absolutely nothing wrong w/ it. No wiggle or anything. Functions great. I honestly don't think the pin or anything was off either. I was just curious. If this is a proble thing, I would like to know. Surely if this is how he does things, others w/ Inrange guns would have it too. Anyone? |
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I have never seen it done that way by any other builder reputable, or non-reputable.
If perchance the barrel pin was loose, it should have been replaced by drilling the barrel pin hole slightly larger and fitting a slightly larger pin to it. The line about 'putting equal pressure on the 6 o'clcok and 12 o'clock of the barrel' is pure malarky. The barrel it held in by being pressed into the front trunnion and friction holding it in place, and the pin keeps it from slipping and changing headspace. Inrange is a reputable builder, but sometheing here does not add up. i would ask them two further questions: 1. Why does no other builder do this? 2. Do they do this on all their other builds? |
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I agree, There’s no reason why that area should be welded. IMO If one needs to weld to insure no movement to a design that doesn't call for a weld, it’s out of spec. The issue of head- space and barrel\ trunnion diameter should be verified and or corrected prior to trunnion istallation.Once this is performed you can rivet the trunnion in. You don't want to find out after the trunnion is already riveted in place that it won't head-space ect ect. Then the builder has a dilemma. What’s the quick fix? Vs. what should have been done prior to riveting. I’m not trying to bash anyone nor implying assembly practices. I viewed the image above and speculated on why. Another thing to consider also, you minimize headspace or dimension issues with all matching kits. A virgin kit is ok as long all those virgin parts are correct for that rifle. The other side to this is. I'm totally wrong, and this is an industry standard for safety and liability I'm sure I'll be corrected as needed. I’d need more information than he provided in his response. WHY?? All countries that produce\produced AK’s don’t weld there. |
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I just broke down Three Yugoslavian M92s that were built by Troy at Inrange for me about 1 year ago. If I look at mine, faceing the bottom of the reciever there is NO weld, Also there is NO space between the reciever and the trunnion. On this Photo MOST of the BBL trunnion is cut away where it fits in the reciever!. The trunion is square and so is the RECIEVER, Where is the MISSING PIECE OF METAL ?.
Best Regards, Chefgun.   .
God Bless The US. And Our Troops !! |
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I just broke down Three Yugoslavian M92s that were built by Troy at Inrange for me about 1 year ago. If I look at mine, faceing the bottom of the reciever there is NO weld, Also there is NO space between the reciever and the trunnion. On this Photo MOST of the BBL trunnion is cut away where it fits in the reciever!. The trunion is square and so is the RECIEVER, Where is the MISSING PIECE OF METAL ?. Best Regards, Chefgun. .
God Bless The US. And Our Troops !! HUH? |
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I just broke down Three Yugoslavian M92s that were built by Troy at Inrange for me about 1 year ago. If I look at mine, faceing the bottom of the reciever there is NO weld, Also there is NO space between the reciever and the trunnion. On this Photo MOST of the BBL trunnion is cut away where it fits in the reciever!. The trunion is square and so is the RECIEVER, Where is the MISSING PIECE OF METAL ?. Best Regards, Chefgun. .
God Bless The US. And Our Troops !! Thats just those odd ball Yugo barrel trunnions, everybody else, except the N Koreans, the Hungarians and I guess the Yugos, look like the one in the picture. |
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I just broke down Three Yugoslavian M92s that were built by Troy at Inrange for me about 1 year ago. If I look at mine, faceing the bottom of the reciever there is NO weld, Also there is NO space between the reciever and the trunnion. On this Photo MOST of the BBL trunnion is cut away where it fits in the reciever!. The trunion is square and so is the RECIEVER, Where is the MISSING PIECE OF METAL ?. Best Regards, Chefgun. .
God Bless The US. And Our Troops !! Hey Chefgun, This one got my attention too. I checked on the M92 I built a couple of years ago and found that you are right. No way the pictured trunion is not altered for some reason. I have included a pic of the trunion that was part of a very clean unfired kit. Something is not right on the build under discussion here. It may well indeed not be a problem and the firearm in quesiton may well be just fine for operation but its not the norm. I have never had to weld any of the builds I have done over the years and would assume that any welding was done to address some kind of problem. 
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nictra, Ok dont get mad or anything, we are just trying to help. If YOU look at the Picture that you sent. With the BOTTOM of the Reciever and Barrel faceing you, in your hand OK, Do you see all of the Metal around the barrel that has been cut away ? That should be one SOLID SQUARE of metal that would fit right inside your reciever. It has been cut away with a torch. Troy at Inrange would NOT DO THAT and would NOT let a Firearm leave his place like that. Its called Liabillity, and if the Rifle BLOWS it will come right back on him, And beleve me the Man has to much to lose to let that happen, And KNOW, I am NOT a personal friend of his. I would send your Rifle to Charlie at Overland Industries, and He will fix it. I hope this helps You.
My Best Regards, Chefgun.  .
God Bless The US. And Our Troops !! |
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Whell, I don't see any problem with trunnion also (aside from weld that was questioned by OP to begin with).
To me, it is typical AKM / AK-74 trunnion. As for pictures posted by WildGoose - it is Yugo M-92 (and OP was asking about Bulgarian AKS-74U), and yes - Yugo trunnion is very different from Bulgarian one. |
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nictra, Ok dont get mad or anything, we are just trying to help. If YOU look at the Picture that you sent. With the BOTTOM of the Reciever and Barrel faceing you, in your hand OK, Do you see all of the Metal around the barrel that has been cut away ? That should be one SOLID SQUARE of metal that would fit right inside your reciever. It has been cut away with a torch. Troy at Inrange would NOT DO THAT and would NOT let a Firearm leave his place like that. Its called Liabillity, and if the Rifle BLOWS it will come right back on him, And beleve me the Man has to much to lose to let that happen, And KNOW, I am NOT a personal friend of his. I would send your Rifle to Charlie at Overland Industries, and He will fix it. I hope this helps You. My Best Regards, Chefgun. .
God Bless The US. And Our Troops !! Nothing has been cut away from that trunion. You are comparing it to a Yugo trunion. The one in his picture is more than likely Bulgarian. Bulgarian: 
Romanian: 
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Whell, I don't see any problem with trunnion also (aside from weld that was questioned by OP to begin with). To me, it is typical AKM / AK-74 trunnion. As for pictures posted by WildGoose - it is Yugo M-92 (and OP was asking about Bulgarian AKS-74U), and yes - Yugo trunnion is very different from Bulgarian one. KK66-You are right. My bad for sure in not catching the fact that the issue was with a AKS-74U. I have built both and should have been more observant. I still feel that welding is a fix for something not being right but would stop short of saying that it means the weapon is not servicable. Thanks for the correction. 
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welding is a fix crutch for something not being right fixed it for ya. I have a Romanian Sar 2 made over by InRange. I was having the rifle NIB Split case down the neck . 3 out of 10 shots. I also had from the factory the cross support pin rivet was sheared. Had him install a romie 74 FSh so I could put a 74 break on it with bayo lug. I have a small spot of weld on mine also. I asked about it and what I remember being told was he reset the Headspace ( Split necks problem) . He didn't want any shift in the barrel when installing the pin to reset the headspace. I went and shot this beauty and she shoots great. Split necks ?? Haven't found anymore..... It's a non issue for me. I have had 4 rifle built by InRange and this is the only one with the spot weld. So apparently there was an issue on setting the headspace and he deemed it necessary. I don't have a problem with that. Considering he's built more AK's than most of us have ever seen in pictures. IMO WarDawg |
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To answer this mysterious question!!!!!!!!!!!!!!!!!!!!!!!
We have to weld up the divot in the barrell and REDRILL and ream the 7mm barrel pin hole. This was a factory assembled rifle that had it's original barrel removed (we did not remove the trunion and this rifle was not a kit build) and a barrel that had been previously installed in another trunion. After pressing this situation together I have had the barrell move slightly because of the tolerence of the two while redrilling the pin hole. Do you know ho much carbide tooling costs? Maybe it would not have occured in this one but it saves tooling etc. to put a small tack there till the pin is installed. It's just a little insurance to maintain headspace during the process and evens out the pressure. It in no way effects the function or appearance of the rifle. You would be suprised at the amount of Arsenal factory rifles that I have pressed barrels out of that took very little pressure to press out but are fully functional once the pin is installed. My question? Are you going to buy a new kit or host rifle on speculation of an assembly problem? I did it to alleviate a possible problem. Flame away! |
| No flaming needed Troy! I was curious, and your email did not quite explain it all to me. In retrospect, I should have continued my conversation with you via email, but with you builders being so busy, I didn't want to bother you over something I felt was trivial. I have experienced no issues what so ever with this rifle, and love it! I just have never seen a tack weld there before, as stated in original post. I thank you for a clearer explanation. |
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That is actually pretty smart and it makes total sense, I think its funny people think it was put there as some sort of conspiracy. I'm glad Troy chimed in.
And If I was to choose a builder InRange would be the company I would seek out. Their reputation of quality builds is far spread across the AK world. Anyone who has spent anytime out there looking at the builders know that InRange's work is second to none. |
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Please note that I stated I did not feel that the weapon being commented on was not serviceable. I just made the point that the weld was done for some reason to correct an issue. The owner reported that it functioned with out problems.
Troy, I am aware of your reputation and do not now nor have I ever felt that you are not a fully compitent and reliable builder. This is just a hobby to many of us and I fall into that catatgory. I would never attempt to manufacture weapons for others than myself. Its plain that I was woefully out of touch on the whole issue as I missed the fact that the rilfe was Bulgarian and not an M-92. I am glad that you have commented to set things straight as to why this was done. As far as I am concerned lesson learned about knee jerk comments on others work and I am out of here.
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Theres some AK home builders here talking out of their rear. Troys explanation is spot on, and now the trash talkers are trying to backpeddle to hide the foot they inserted into their mouth.
Thanks for clearing your name Troy. Its sad how untrained people try to trash professionals who do gunwork for a living. I get it weekly, its common territory with certain people. Cheers Troy |
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